My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

B&M 21041 Master Overhaul Kit for TH400 Transmission

(GMC G2500 1979-90, K1500 1979-90, C1500 1979-90, K2500 1979-90, Jimmy 1970-90, C3500 1979-90, K2500 Suburban 1979-86, K3500 1979-90 + 192 more models)

Manufacturer

Picture for manufacturer B&M

Part Number

21041
12 reviews
Sale Price

$478.95

In Stock (10+)

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The B&M 21041 Master Overhaul Kit provides everything needed for a complete high-performance or racing rebuild of the Turbo Hydramatic 400 (TH400) transmission. This comprehensive kit is designed for enthusiasts and professionals looking to restore or upgrade their TH400 transmission to optimal performance.

Key Features:

  • Complete master overhaul kit specifically engineered for TH400 transmissions
  • Includes all essential gaskets, seals, and O-rings for a full rebuild
  • OEM-quality valve body gaskets ensure proper sealing and fluid control
  • Suitable for high-performance and racing applications
  • Designed to restore transmission to factory specifications or better

This kit contains all the necessary components to complete a thorough transmission overhaul, eliminating the need to source individual parts separately. Please note that installation instructions are not included with this kit; professional installation or mechanical experience is recommended for proper rebuild procedures.

Products specifications

Fits

GMC G2500 1979-90, K1500 1979-90, C1500 1979-90, K2500 1979-90, Jimmy 1970-90, C3500 1979-90, K2500 Suburban 1979-86, K3500 1979-90, C15/C1500 Pickup 1968-74, 1979-83, C2500 1979-90, K1500 Suburban 1979-86, G25/G2500 Van 1973-90 + 188 more models

Title

B&M 21041 Transmission Kit, Master Overhaul Kit For TH400

Prop 65

Yes

California Proposition 65 Chemical Name 1

Cadmium and cadmium compounds

California Proposition 65 Chemical Name

Cadmium and cadmium compounds

Trans Year

All

Gasket Or Seal Included

Yes

Trans Model

GM- TH400 (Auto) 3 Speed

Brand

B&M

Category

Transmission and Drivetrain

Emission Code

5

Gasket Included

Yes

Instructions Included

No

Manual Control

Partial

Product Type

Automatic Transmission Master Repair Kit

Warning

California Proposition 65

Easy

Product came early! It is what I wanted and needed.

Thank you fast service fast shipping

Vary good thank you.

Very pleased, my item was what I wanted delivered unexpectedly quick.

ok

I experienced a glitch in my order getting split up by the shipper and part of it not getting delivered. Autoplicity did an great job at getting it resolved.....Thanks!!

So far so good on price

Shipping charge is way out of line

Autoplicity has the cheapest prices around and fast shipping. I will do business with them again in the future.

No hassle ordering and fast quality shipping at a reasonable price

Item arrived promptly (4 days after order), price was good and item was as described.

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy